Fountain pen



Nov. 2o, 1923.

P. NARAYAN FOUNTAIN PEN Filed April v, 1925 Patented Nev. 2o, 1923;

UNITED STATES PREM NARAYAN, or BIJNoR, INDIA.

FOUNTAIN PEN.

A Application ined April 7,

To all whom it may concern.' 4

Be it known that I, PREM NARAYAN, a subject of the KingV of Great' Britain and,

Ireland, residing at Bijnor, United Prov- 6 inces, India, have invented new and useful Fountain Pens, of which the following is a specification.

M invention relates to fountain pens of the liind in which the nib is projected into its operative or writing position without requiring the removal of a cap or vlike. detach able cover.

' One object of my invention is to improve the means whereby the nib, when not required for use, is concealed and protected within the body or casing of the pen.

Another object of my invention is to provide improved means whereby the nib may j be readily moved into or out of the body or casing of the pen, said movement being effected with ease and rapidity by a one-hand manipulation.

Another object of my invention is to provide means for preventing the flow of ink through the nib when the latter is in the retracted or inoperative position.

A further object of my invention is the provision of means whereby the accidental or unintentional manipulation of the device for moving the nib into its operative position is prevented.

A still further object of my invention is to provide in a fountain-pen of the kind above, referred to, and of the type known as self-filling, means whereby the self-lilling lever is locked against manipulation when the nib is in the retracted or inoperative position. u

Referring to the drawings which form part of this specification, Fi 1 is an elevation of the improved pen, 1g. 2 is a. partsectional view at 2-2 of Fig. l, Fig. 3 is a. section to an enlarged scale at 3-3 of Fig. 2, Fig. 4 is a view of the pen-barrel detached, Fig. 5 illustrates to an enlarged scale the fitting comprising the pocket-clip and the self-filling lever, Figs. 6 and 6a are respectively an elevation and plan view of a closure-member hereinafter referred to, and Fig. 7 is an end view of the pen with the nib in the retracted position.

The nib 1, feed-bar 2,- and an attachment 3 (the function of which will be hereinafter explained) are mounted in a tubular socket 4. To the feed-bar 2 is secured an india-rubber ink-reservoir 5. A metal strip 1923. Serial No. 630,539.

6 is disposed alongside the reservoir 5, said strip being of a springy nature and normally tending to occupy a position in which 1t is not pressing on (so as to collapse or flatten) the reservoir. The strip may be secured to the feed-bar2 or tothe reservoir itself. Formed on, or suitably secured to, the socket 4 is a button or lug 7 which is adapted to project outwardly from or through a longitudinal slot 9 in the barrel 8, the latter acting as a holder for the parts above referred to.

Pivotally mounted within the slot 9 is the self-filling lever 10 which cooperates with the strip 6 and reservoir 5 in the usual manner of such devices.

A non-removable cap or endpiece 11 itted tothe barrel 8 is formed with an aperture 11-through which the nib is projected for use by sllding the lug 7 along theslot 9. When the nib is inthe inoperative position,

. it is housed and completely concealed within the cap or end plece 11, as shown in Figs. i

1 and 2. In this position, the aperture 11 is closed by the part 12 of a resilient member 13 the vother end of which iscarried' by a ring or collar 13 which is fitted tightly within the cap 11 as shown in Fig. 2. The cap is internally recessed or shouldered to form an abutment for the ring 13', but at the portion corresponding to the position of the strip'13 the cap is formed with alongitudinal groove 11. It will be seen that the member 13 and the closure element 12 are also completely enclosed within the cap 11. Further, the construction and arrangement of this member (13) is such that it normally tends to assume or occupy` the position shownin Fig. 2 wheren'the part 12 is closing the aperture 11 when the nib is retracted within the housing 11.

If the lug 7 is calsed to move outwardly to uncover the aperture 11 so as to permit ,the free passage therethrough of the nib 1 in the continued movement of the lug 7.

By properly shaping the wall surroundingthe aperture 11' and the coo erating closure-element 12, the entrance o dirt etc. as

well as the possible evaporation ofthrough the aperture is prevented or minimized.

Further, when the pen is in the inoperative position, the attachment 3 (which cor' responds in form and assemblage to the topfeed-barof av twin-'feed pen) is caused to press on to the nib so as to close the opening therethrough and thus prevent the escape of ink. The operative face of the Ipart 3, that is to sa the surface-adj acent the nib, is suitably pa ded; This face/ is pressed into contact with the nib when the pen is being manipulated to bring the nib into the retracted position owing to the abutmentfof the inner wall of the housing 11 with the tapering outer face of the part 3. Whenthe pen is manipulated to bring the mb into the operative position, the pressure of the part 3 on the nib is released by virtue of the inherent resiliency of the part 3.

A pocket-cli 16, secured to the barrel at the end thereo nearest the nib, is so shaped that the button 7 moves up and down Within it. 'lhe clip may carry the member on which the filling-lever 10 is mounted. As shown.

more clearly in Figure 5, the lever 10 is pivotedwithin a biurcated strip 10 secured to the pocket-clip 16. An extension 10 is suitabl curved to fit between the upper end of the barrel and the inner wall of the part 11 so as to be firmly clamped in the position shown in Figures 1 and 2 when( the part 11 is assembled over the barrel.

ln order, to protect the button 7 and to prevent its accidental displacement, espe` cially when the pen is being placed in or removed from the pocket, the barrel 8` is formed with raised portions 15 which project beyond, 'and thus prevent fouling of, the button.

rlhe button 7 is formed at one side with a slot or notch 7 which, when the nib is in the retracted position, straddles the lever 10 so as to lock the latter against operation.

lt will be' understood that the invention is.

not limited to the preciseI construction of parts alcoveJ described and shown on the drawings. 'lo those skilled in the art to which my invention relates, it will *be-obvious that many modifications are possible within the scope ofthe appended claims; for example, it is not essential that the pen be of the self-filling type. The method of and means for actuating the nib and -its associated .parts into 'and out of the operative position and the construction, disposition, and method of operation of the closure member for the end-aperture, and which constirevenir tute important 'features of the present invention, could be applied to a fountainpen irrespective of the manner in which the same is filled with ink.

nvwiu be undersaoa that where in the Y by those.

vin the art that in the construction hereinbefore described and shown on the drawing-the end-piece or cap 11'is actuall a separate part merely for the purpose-o assemblage,

etc.

l claim 1. A self-illin fountain-pen comprising a nib, a support t erefor having an attachedl ink-reservoir, .means carriedby the nib-support for moving the latter so as to cause the nib to be projected through an aperture in the end of the pen or to .M retracted within the latter, a self-filling lever, and means whereby the lever is locked inst operation when the nih is in the retracted OD.'

posi# 2. A fountain-pen having an aperture'in the end thereof through which the nib 'may be projected, and a resilient closure-member which is completely enclosed within the end portion of the pen and automatically closes said aperture when the nib is withdrawn therethrough into a in the pen body.

. 3. A ountainn having" a non-detachable cap or1 end-p1ece,a slidable nibsuport, means whereby the nib may be projecte out of an aperture in the end of the pen or withdrawn within the latter, a non-rotatable reconcealed position Withu silient. closure-member for said aperture'- fitted within said end-piece, means asso-- ciated with the nib and adapted 'to -co-operate with the surrounding portion of the pen to shut ed the iow of ink through .the nib when this is in the last-mentioned ition.

4. A fountain-pen of the self-lilling type having a nib adapted vto be housed within the tubular Wall of the pen or to be' projected through an end aperture and a slidable nib-support, having apart which overlies the self-filling lever, when the nib is in the retracted or inoperative postiion.

PREM NARAYAN.

Witnesses f Rnssnm l-l. Encens, N. @stomen 

